Evolution of precipitate morphology during heat treatment and its implications for the superconductivity in KxFe1.6+ySe2 single crystals

Liu, Y.; Xing, Q.; Dennis, K. W.; McCallum, R. W.; Lograsso, T. A.

doi:10.1103/PhysRevB.86.144507

Title: Evolution of precipitate morphology during heat treatment and its implications for the superconductivity in K_xFe_1.6+ySe₂ single crystals

Authors:: Liu, Y.; Xing, Q.; Dennis, K. W.; McCallum, R. W.; Lograsso, T. A.

Publication Date:: Mon Oct 08 00:00:00 EDT 2012

Sponsoring Org.:: USDOE

OSTI Identifier:: 1101551

Resource Type:: Publisher's Accepted Manuscript

Journal Name:: Physical Review. B, Condensed Matter and Materials Physics

Additional Journal Information:: Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Volume: 86 Journal Issue: 14; Journal ID: ISSN 1098-0121

Publisher:: American Physical Society

Country of Publication:: United States

Language:: English

Citation Formats


                    Liu, Y., Xing, Q., Dennis, K. W., McCallum, R. W., and Lograsso, T. A. Evolution of precipitate morphology during heat treatment and its implications for the superconductivity in KxFe1.6+ySe2 single crystals.  United States: N. p., 2012. 
Web.  doi:10.1103/PhysRevB.86.144507.

Copy to clipboard


                    Liu, Y., Xing, Q., Dennis, K. W., McCallum, R. W., & Lograsso, T. A. Evolution of precipitate morphology during heat treatment and its implications for the superconductivity in KxFe1.6+ySe2 single crystals.  United States.  https://doi.org/10.1103/PhysRevB.86.144507

Copy to clipboard


                    Liu, Y., Xing, Q., Dennis, K. W., McCallum, R. W., and Lograsso, T. A. Mon .  
"Evolution of precipitate morphology during heat treatment and its implications for the superconductivity in KxFe1.6+ySe2 single crystals".  United States.  https://doi.org/10.1103/PhysRevB.86.144507.

Copy to clipboard


                    
@article{osti_1101551,

  title        = {Evolution of precipitate morphology during heat treatment and its implications for the superconductivity in KxFe1.6+ySe2 single crystals},

  author       = {Liu, Y. and Xing, Q. and Dennis, K. W. and McCallum, R. W. and Lograsso, T. A.},

  abstractNote = {},

  doi          = {10.1103/PhysRevB.86.144507},

  journal      = {Physical Review. B, Condensed Matter and Materials Physics},

  number       = 14,

  volume       = 86,

  place        = {United States},

  year         = {Mon Oct 08 00:00:00 EDT 2012},

  month        = {Mon Oct 08 00:00:00 EDT 2012}

}

Copy to clipboard

Journal Article:

Free Publicly Available Full Text

Accepted Manuscript (Publisher)

Publisher's Version of Record
https://doi.org/10.1103/PhysRevB.86.144507

Other availability

Search WorldCat to find libraries that may hold this journal

Citation Metrics:

Cited by: 64 works

Citation information provided by
Web of Science

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Transport properties of the new Fe-based superconductor KxFe2Se2 (Tc=33 K)
journal, January 2011

Mizuguchi, Yoshikazu; Takeya, Hiroyuki; Kawasaki, Yasuna
Applied Physics Letters, Vol. 98, Issue 4
DOI: 10.1063/1.3549702

Phase transition, superstructure and physical properties of K ₂ Fe ₄ Se ₅
journal, July 2011

Song, Y. J.; Wang, Z.; Wang, Z. W.
EPL (Europhysics Letters), Vol. 95, Issue 3
DOI: 10.1209/0295-5075/95/37007

Electronic and magnetic phase diagram in KxFe2-ySe2 superconductors
journal, January 2012

Yan, Y. J.; Zhang, M.; Wang, A. F.
Scientific Reports, Vol. 2, Issue 1
DOI: 10.1038/srep00212

Anisotropic magnetism, superconductivity, and the phase diagram of Rb $_{1 - x}$ Fe $_{2 - y}$ Se $_{2}$
journal, October 2011

Tsurkan, V.; Deisenhofer, J.; Günther, A.
Physical Review B, Vol. 84, Issue 14
DOI: 10.1103/PhysRevB.84.144520

The Theory of Transformations in Metals and Alloys
journal, March 2003

Christian, J. W.
Materials Today, Vol. 6, Issue 3
DOI: 10.1016/S1369-7021(03)00335-3

Microstructural analysis of phase separation in iron chalcogenide superconductors
journal, July 2012

Speller, S. C.; Britton, T. B.; Hughes, G. M.
Superconductor Science and Technology, Vol. 25, Issue 8
DOI: 10.1088/0953-2048/25/8/084023

Coexistence of Magnetism and Superconductivity in the Iron-Based Compound ${Cs}_{0.8} ({FeSe}_{0.98})_{2}$
journal, March 2011

Shermadini, Z.; Krzton-Maziopa, A.; Bendele, M.
Physical Review Letters, Vol. 106, Issue 11
DOI: 10.1103/PhysRevLett.106.117602

Superconducting properties of single-crystalline $A_{x}$ Fe $_{2 - y}$ Se $_{2}$ ( $A$ $=$ Rb, K) studied using muon spin spectroscopy
journal, March 2012

Shermadini, Z.; Luetkens, H.; Khasanov, R.
Physical Review B, Vol. 85, Issue 10
DOI: 10.1103/PhysRevB.85.100501

Spin Reorientation in ${TlFe}_{1.6} {Se}_{2}$ with Complete Vacancy Ordering
journal, August 2012

May, Andrew F.; McGuire, Michael A.; Cao, Huibo
Physical Review Letters, Vol. 109, Issue 7
DOI: 10.1103/PhysRevLett.109.077003

Fe-based superconductivity with T _c =31 K bordering an antiferromagnetic insulator in (Tl,K) Fe _x Se ₂
journal, April 2011

Fang, Ming-Hu; Wang, Hang-Dong; Dong, Chi-Heng
EPL (Europhysics Letters), Vol. 94, Issue 2
DOI: 10.1209/0295-5075/94/27009

Local structural disorder and superconductivity in K $_{x}$ Fe $_{2 - y}$ Se $_{2}$
journal, June 2012

Ryu, Hyejin; Lei, Hechang; Frenkel, A. I.
Physical Review B, Vol. 85, Issue 22
DOI: 10.1103/PhysRevB.85.224515

Intrinsic percolative superconductivity in K _x Fe _2−y Se ₂ single crystals
journal, October 2011

Shen, B.; Zeng, B.; Chen, G. F.
EPL (Europhysics Letters), Vol. 96, Issue 3
DOI: 10.1209/0295-5075/96/37010

Crystal structure, physical properties and superconductivity in A _x Fe ₂ Se ₂ single crystals
journal, May 2011

Luo, X. G.; Wang, X. F.; Ying, J. J.
New Journal of Physics, Vol. 13, Issue 5
DOI: 10.1088/1367-2630/13/5/053011

Electronic Identification of the Parental Phases and Mesoscopic Phase Separation of $K_{x} {Fe}_{2 - y} {Se}_{2}$ Superconductors
journal, December 2011

Chen, F.; Xu, M.; Ge, Q. Q.
Physical Review X, Vol. 1, Issue 2
DOI: 10.1103/PhysRevX.1.021020

Iron-Based Layered Superconductor: LaOFeP
journal, August 2006

Kamihara, Yoichi; Hiramatsu, Hidenori; Hirano, Masahiro
Journal of the American Chemical Society, Vol. 128, Issue 31
DOI: 10.1021/ja063355c

Common Crystalline and Magnetic Structure of Superconducting $A_{2} {Fe}_{4} {Se}_{5}$ ( $A = K, Rb, Cs, Tl$ ) Single Crystals Measured Using Neutron Diffraction
journal, September 2011

Ye, F.; Chi, S.; Bao, Wei
Physical Review Letters, Vol. 107, Issue 13
DOI: 10.1103/PhysRevLett.107.137003

Nanoscale phase separation of antiferromagnetic order and superconductivity in K0.75Fe1.75Se2
journal, January 2012

Yuan, R. H.; Dong, T.; Song, Y. J.
Scientific Reports, Vol. 2, Issue 1
DOI: 10.1038/srep00221

Iron-Based Layered Superconductor La[O _1- _x F _x ]FeAs ( x = 0.05−0.12) with T _c = 26 K
journal, March 2008

Kamihara, Yoichi; Watanabe, Takumi; Hirano, Masahiro
Journal of the American Chemical Society, Vol. 130, Issue 11
DOI: 10.1021/ja800073m

A Novel Large Moment Antiferromagnetic Order in K _0.8 Fe _1.6 Se ₂ Superconductor
journal, August 2011

Bao, Wei; Huang, Qing-Zhen; Chen, Gen-Fu
Chinese Physics Letters, Vol. 28, Issue 8
DOI: 10.1088/0256-307X/28/8/086104

${KFe}_{2} {Se}_{2}$ is the Parent Compound of K-Doped Iron Selenide Superconductors
journal, July 2012

Li, Wei; Ding, Hao; Li, Zhi
Physical Review Letters, Vol. 109, Issue 5
DOI: 10.1103/PhysRevLett.109.057003

Superconductivity and magnetic properties of single crystals of $K_{0.75}$ Fe $_{1.66}$ Se $_{2}$ and Cs $_{0.81}$ Fe $_{1.61}$ Se $_{2}$
journal, June 2011

Ying, J. J.; Wang, X. F.; Luo, X. G.
Physical Review B, Vol. 83, Issue 21
DOI: 10.1103/PhysRevB.83.212502

Observation of superconductivity at 30∼46K in AxFe2Se2(A = Li, Na, Ba, Sr, Ca, Yb and Eu)
journal, May 2012

Ying, T. P.; Chen, X. L.; Wang, G.
Scientific Reports, Vol. 2, Issue 1
DOI: 10.1038/srep00426

Giant increase in critical current density of K $_{x}$ Fe $_{2 - y}$ Se $_{2}$ single crystals
journal, December 2011

Lei, Hechang; Petrovic, C.
Physical Review B, Vol. 84, Issue 21
DOI: 10.1103/PhysRevB.84.212502

Structure of vacancy-ordered single-crystalline superconducting potassium iron selenide
journal, April 2011

Zavalij, P.; Bao, Wei; Wang, X. F.
Physical Review B, Vol. 83, Issue 13
DOI: 10.1103/PhysRevB.83.132509

Superconductivity in the iron selenide $K_{x} {Fe}_{2} {Se}_{2}$ $(0 \leq x \leq 1.0)$
journal, November 2010

Guo, Jiangang; Jin, Shifeng; Wang, Gang
Physical Review B, Vol. 82, Issue 18
DOI: 10.1103/PhysRevB.82.180520

Intrinsic phase separation in superconducting K _0.8 Fe _1.6 Se ₂ ( T _c = 31.8 K) single crystals
journal, July 2011

Ricci, Alessandro; Poccia, Nicola; Joseph, Boby
Superconductor Science and Technology, Vol. 24, Issue 8
DOI: 10.1088/0953-2048/24/8/082002

Anisotropic magnetism, resistivity, London penetration depth and magneto-optical imaging of superconducting K _0.80 Fe _1.76 Se ₂ single crystals
journal, March 2011

Hu, R.; Cho, K.; Kim, H.
Superconductor Science and Technology, Vol. 24, Issue 6
DOI: 10.1088/0953-2048/24/6/065006

Microstructure and ordering of iron vacancies in the superconductor system $K_{y}$ Fe $_{x}$ Se $_{2}$ as seen via transmission electron microscopy
journal, April 2011

Wang, Z.; Song, Y. J.; Shi, H. L.
Physical Review B, Vol. 83, Issue 14
DOI: 10.1103/PhysRevB.83.140505

Metastable superconducting state in quenched K _x Fe _{2− y} Se ₂
journal, July 2012

Han, Fei; Yang, Huan; Shen, Bing
Philosophical Magazine, Vol. 92, Issue 19-21
DOI: 10.1080/14786435.2012.681711

Phase separation in superconducting and antiferromagnetic ${Rb}_{0.8} {Fe}_{1.6} {Se}_{2}$ probed by Mössbauer spectroscopy
journal, November 2011

Ksenofontov, Vadim; Wortmann, Gerhard; Medvedev, Sergey A.
Physical Review B, Vol. 84, Issue 18
DOI: 10.1103/PhysRevB.84.180508

NMR Study in the Iron-Selenide ${Rb}_{0.74} {Fe}_{1.6} {Se}_{2}$ : Determination of the Superconducting Phase as Iron Vacancy-Free ${Rb}_{0.3} {Fe}_{2} {Se}_{2}$
journal, June 2012

Texier, Y.; Deisenhofer, J.; Tsurkan, V.
Physical Review Letters, Vol. 108, Issue 23
DOI: 10.1103/PhysRevLett.108.237002

Synthesis and crystal growth of Cs _0.8 (FeSe _0.98 ) ₂ : a new iron-based superconductor with T _c = 27 K
journal, January 2011

Krzton-Maziopa, A.; Shermadini, Z.; Pomjakushina, E.
Journal of Physics: Condensed Matter, Vol. 23, Issue 5
DOI: 10.1088/0953-8984/23/5/052203

Nanoscale phase separation in the iron chalcogenide superconductor K $_{0.8}$ Fe $_{1.6}$ Se $_{2}$ as seen via scanning nanofocused x-ray diffraction
journal, August 2011

Ricci, A.; Poccia, N.; Campi, G.
Physical Review B, Vol. 84, Issue 6
DOI: 10.1103/PhysRevB.84.060511

One-step synthesis of K _x Fe _2−y Se ₂ single crystal for high critical current density
journal, April 2012

Ozaki, Toshinori; Takeya, Hiroyuki; Okazaki, Hiroyuki
EPL (Europhysics Letters), Vol. 98, Issue 2
DOI: 10.1209/0295-5075/98/27002

Nanoscale Layering of Antiferromagnetic and Superconducting Phases in ${Rb}_{2} {Fe}_{4} {Se}_{5}$ Single Crystals
journal, July 2012

Charnukha, A.; Cvitkovic, A.; Prokscha, T.
Physical Review Letters, Vol. 109, Issue 1
DOI: 10.1103/PhysRevLett.109.017003

Superconductivity at 32 K in single-crystalline Rb $_{x}$ Fe $_{2 - y}$ Se $_{2}$
journal, February 2011

Wang, A. F.; Ying, J. J.; Yan, Y. J.
Physical Review B, Vol. 83, Issue 6
DOI: 10.1103/PhysRevB.83.060512

Anisotropic critical currents in Ba ₂ YCu ₃ O ₇ analyzed using an extended Bean model
journal, July 1989

Gyorgy, E. M.; van Dover, R. B.; Jackson, K. A.
Applied Physics Letters, Vol. 55, Issue 3
DOI: 10.1063/1.102387

K _x Fe _{2− y} Se ₂ single crystals: floating-zone growth, transport and structural properties
journal, May 2012

Liu, Y.; Li, Z. C.; Liu, W. P.
Superconductor Science and Technology, Vol. 25, Issue 7
DOI: 10.1088/0953-2048/25/7/075001

Phase separation and magnetic order in K-doped iron selenide superconductor
journal, November 2011

Li, Wei; Ding, Hao; Deng, Peng
Nature Physics, Vol. 8, Issue 2
DOI: 10.1038/nphys2155

Superconductivity at 43 K in an iron-based layered compound LaO1-xFxFeAs
journal, April 2008

Takahashi, Hiroki; Igawa, Kazumi; Arii, Kazunobu
Nature, Vol. 453, Issue 7193
DOI: 10.1038/nature06972

Effect of varying iron content on the transport properties of the potassium-intercalated iron selenide $K_{x}$ Fe $_{2 - y}$ Se $_{2}$
journal, April 2011

Wang, D. M.; He, J. B.; Xia, T. -L.
Physical Review B, Vol. 83, Issue 13
DOI: 10.1103/PhysRevB.83.132502

Similar Records in DOE PAGES and OSTI.GOV collections:

Erratum: Evolution of precipitate morphology during heat treatment and its implications for the superconductivity in $K_{x} F e_{1.6 + y} S e_{2}$ single crystals [Phys. Rev. B 86 , 144507 (2012)]

Journal Article Liu, Y. ; Xing, Q. ; Dennis, K. W. ; ... - Physical Review. B, Condensed Matter and Materials Physics

In this article, we study the relationship between precipitate morphology and superconductivity in K_xFe_1.6+ySe₂ single crystals grown by self-flux method. Scanning electron microscopy (SEM) measurements revealed that the superconducting phase forms a network in the samples quenched above iron vacancy order-disorder transition temperature T_s, whereas it aggregates into micrometer-sized rectangular bars and aligns as disconnected chains in the furnace-cooled samples.
https://doi.org/10.1103/PhysRevB.92.059901

Full Text Available
Formation mechanism of superconducting phase and its three-dimensional architecture in pseudo-single-crystal K_xFe_2-ySe₂

Journal Article Liu, Yong ; Xing, Qingfeng ; Straszheim, Warren E. ; ... - Physical Review B

Here, we report how the superconducting phase forms in pseudo-single-crystal K_xFe_2-ySe₂. In situ scanning electron microscopy (SEM) observation reveals that, as an order-disorder transition occurs, on cooling, most of the high-temperature iron-vacancy-disordered phase gradually changes into the iron-vacancy-ordered phase whereas a small quantity of the high-temperature phase retains its structure and aggregates to the stripes with more iron concentration but less potassium concentration compared to the iron-vacancy-ordered phase. The stripes that are generally recognized as the superconducting phase are actually formed as a remnant of the high-temperature phase with a compositional change after an “imperfect” order-disorder transition. It should bemore »« less
Cited by 16
https://doi.org/10.1103/PhysRevB.93.064509

Full Text Available
Scanning tunneling microscopy study of morphology and electronic properties in (K{sub 0.7}Na{sub 0.3})Fe{sub 2−y}Se{sub 2} single crystal

Journal Article Trifonov, A. S., E-mail: trifonov.artem@phys.msu.ru ; Presnov, D. E. ; Low Temperature Physics and Superconductivity Department, Physics Faculty, Lomonosov Moscow State University, 119991 Moscow ; ... - Journal of Applied Physics

We investigated the microstructure of the iron selenide superconductor (K{sub 0.7}Na{sub 0.3})Fe{sub 2−y}Se{sub 2} with a T{sub c} = 32 K and a near 100% Meissner screening volume fraction. Topography and electron transport properties were studied using electron microscopy and ultra-high vacuum scanning tunneling microscopy (STM) techniques. Room temperature STM measurements reliably identify spatial variations of the local electronic properties of this material. The studied crystals consist of continuous regions with significantly different shapes of current-voltage curves reflecting different electronic transport properties of these regions. Fitting of the local current-voltage curves with the Simmons model for metal-dielectric-metal structure confirmed a phase separation inmore »« less
https://doi.org/10.1063/1.4891227
Phase Diagram of K_xFe_2-ySe_2-zS_z and the Suppression of its Superconducting State by an Fe2-Se/S Tetrahedron Distortion

Journal Article Lei, Hechang ; Abeykoon, Milinda ; Bozin, Emil S. ; ... - Physical Review Letters
Cited by 64
https://doi.org/10.1103/PhysRevLett.107.137002
Insulating and metallic spin glass in K_xFe_2-δ-yNi_ySe₂ (0.06 ≤ y ≤ 1.44 ) single crystals

Journal Article Ryu, Hyejin ; Abeykoon, Milinda ; Wang, Kefeng ; ... - Physical Review. B, Condensed Matter and Materials Physics

We report electron doping effects by Ni in K_xFe_2-δ-yNi_ySe₂ (0.06 ≤ y ≤ 1.44) single crystal alloys. A rich ground state phase diagram is observed. Thus, a small amount of Ni (~ 4%) suppressed superconductivity below 1.8 K, inducing insulating spin glass magnetic ground state for higher Ni content. With further Ni substitution, metallic resistivity is restored. For high Ni concentration in the lattice the unit cell symmetry is high symmetry I4/mmm with no phase separation whereas both I4/m + I4/mmm space groups were detected in the phase separated crystals when concentration of Ni < Fe. The absence of superconductivitymore »« less
Cited by 6
https://doi.org/10.1103/PhysRevB.91.184503

Full Text Available

Similar Records

Title: Evolution of precipitate morphology during heat treatment and its implications for the superconductivity in KxFe1.6+ySe2 single crystals

Citation Formats

Transport properties of the new Fe-based superconductor KxFe2Se2 (Tc=33 K) journal, January 2011

Phase transition, superstructure and physical properties of K 2 Fe 4 Se 5 journal, July 2011

Electronic and magnetic phase diagram in KxFe2-ySe2 superconductors journal, January 2012

Anisotropic magnetism, superconductivity, and the phase diagram of Rb 1 − x Fe 2 − y Se 2 journal, October 2011

The Theory of Transformations in Metals and Alloys journal, March 2003

Microstructural analysis of phase separation in iron chalcogenide superconductors journal, July 2012

Coexistence of Magnetism and Superconductivity in the Iron-Based Compound Cs 0.8 ( FeSe 0.98 ) 2 journal, March 2011

Superconducting properties of single-crystalline A x Fe 2 − y Se 2 ( A = Rb, K) studied using muon spin spectroscopy journal, March 2012

Spin Reorientation in TlFe 1.6 Se 2 with Complete Vacancy Ordering journal, August 2012

Fe-based superconductivity with T c =31 K bordering an antiferromagnetic insulator in (Tl,K) Fe x Se 2 journal, April 2011

Local structural disorder and superconductivity in K x Fe 2 − y Se 2 journal, June 2012

Intrinsic percolative superconductivity in K x Fe 2−y Se 2 single crystals journal, October 2011

Crystal structure, physical properties and superconductivity in A x Fe 2 Se 2 single crystals journal, May 2011

Electronic Identification of the Parental Phases and Mesoscopic Phase Separation of K x Fe 2 − y Se 2 Superconductors journal, December 2011

Iron-Based Layered Superconductor: LaOFeP journal, August 2006

Common Crystalline and Magnetic Structure of Superconducting A 2 Fe 4 Se 5 ( A = K , Rb , Cs , Tl ) Single Crystals Measured Using Neutron Diffraction journal, September 2011

Nanoscale phase separation of antiferromagnetic order and superconductivity in K0.75Fe1.75Se2 journal, January 2012

Iron-Based Layered Superconductor La[O 1- x F x ]FeAs ( x = 0.05−0.12) with T c = 26 K journal, March 2008

A Novel Large Moment Antiferromagnetic Order in K 0.8 Fe 1.6 Se 2 Superconductor journal, August 2011

KFe 2 Se 2 is the Parent Compound of K-Doped Iron Selenide Superconductors journal, July 2012

Superconductivity and magnetic properties of single crystals of K 0 . 75 Fe 1 . 66 Se 2 and Cs 0 . 81 Fe 1 . 61 Se 2 journal, June 2011

Observation of superconductivity at 30∼46K in AxFe2Se2(A = Li, Na, Ba, Sr, Ca, Yb and Eu) journal, May 2012

Giant increase in critical current density of K x Fe 2 − y Se 2 single crystals journal, December 2011

Structure of vacancy-ordered single-crystalline superconducting potassium iron selenide journal, April 2011

Superconductivity in the iron selenide K x Fe 2 Se 2 ( 0 ≤ x ≤ 1.0 ) journal, November 2010

Intrinsic phase separation in superconducting K 0.8 Fe 1.6 Se 2 ( T c = 31.8 K) single crystals journal, July 2011

Anisotropic magnetism, resistivity, London penetration depth and magneto-optical imaging of superconducting K 0.80 Fe 1.76 Se 2 single crystals journal, March 2011

Microstructure and ordering of iron vacancies in the superconductor system K y Fe x Se 2 as seen via transmission electron microscopy journal, April 2011

Metastable superconducting state in quenched K x Fe 2− y Se 2 journal, July 2012

Phase separation in superconducting and antiferromagnetic Rb 0.8 Fe 1.6 Se 2 probed by Mössbauer spectroscopy journal, November 2011

NMR Study in the Iron-Selenide Rb 0.74 Fe 1.6 Se 2 : Determination of the Superconducting Phase as Iron Vacancy-Free Rb 0.3 Fe 2 Se 2 journal, June 2012

Synthesis and crystal growth of Cs 0.8 (FeSe 0.98 ) 2 : a new iron-based superconductor with T c = 27 K journal, January 2011

Nanoscale phase separation in the iron chalcogenide superconductor K 0 . 8 Fe 1 . 6 Se 2 as seen via scanning nanofocused x-ray diffraction journal, August 2011

One-step synthesis of K x Fe 2−y Se 2 single crystal for high critical current density journal, April 2012

Nanoscale Layering of Antiferromagnetic and Superconducting Phases in Rb 2 Fe 4 Se 5 Single Crystals journal, July 2012

Superconductivity at 32 K in single-crystalline Rb x Fe 2 − y Se 2 journal, February 2011

Anisotropic critical currents in Ba 2 YCu 3 O 7 analyzed using an extended Bean model journal, July 1989

K x Fe 2− y Se 2 single crystals: floating-zone growth, transport and structural properties journal, May 2012

Phase separation and magnetic order in K-doped iron selenide superconductor journal, November 2011

Superconductivity at 43 K in an iron-based layered compound LaO1-xFxFeAs journal, April 2008

Effect of varying iron content on the transport properties of the potassium-intercalated iron selenide K x Fe 2 − y Se 2 journal, April 2011

Title: Evolution of precipitate morphology during heat treatment and its implications for the superconductivity in K_xFe_1.6+ySe₂ single crystals

Transport properties of the new Fe-based superconductor KxFe2Se2 (Tc=33 K)
journal, January 2011

Phase transition, superstructure and physical properties of K ₂ Fe ₄ Se ₅
journal, July 2011

Electronic and magnetic phase diagram in KxFe2-ySe2 superconductors
journal, January 2012

Anisotropic magnetism, superconductivity, and the phase diagram of Rb $_{1 - x}$ Fe $_{2 - y}$ Se $_{2}$
journal, October 2011

The Theory of Transformations in Metals and Alloys
journal, March 2003

Microstructural analysis of phase separation in iron chalcogenide superconductors
journal, July 2012

Coexistence of Magnetism and Superconductivity in the Iron-Based Compound ${Cs}_{0.8} ({FeSe}_{0.98})_{2}$
journal, March 2011

Superconducting properties of single-crystalline $A_{x}$ Fe $_{2 - y}$ Se $_{2}$ ( $A$ $=$ Rb, K) studied using muon spin spectroscopy
journal, March 2012

Spin Reorientation in ${TlFe}_{1.6} {Se}_{2}$ with Complete Vacancy Ordering
journal, August 2012

Fe-based superconductivity with T _c =31 K bordering an antiferromagnetic insulator in (Tl,K) Fe _x Se ₂
journal, April 2011

Local structural disorder and superconductivity in K $_{x}$ Fe $_{2 - y}$ Se $_{2}$
journal, June 2012

Intrinsic percolative superconductivity in K _x Fe _2−y Se ₂ single crystals
journal, October 2011

Crystal structure, physical properties and superconductivity in A _x Fe ₂ Se ₂ single crystals
journal, May 2011

Electronic Identification of the Parental Phases and Mesoscopic Phase Separation of $K_{x} {Fe}_{2 - y} {Se}_{2}$ Superconductors
journal, December 2011

Iron-Based Layered Superconductor: LaOFeP
journal, August 2006

Common Crystalline and Magnetic Structure of Superconducting $A_{2} {Fe}_{4} {Se}_{5}$ ( $A = K, Rb, Cs, Tl$ ) Single Crystals Measured Using Neutron Diffraction
journal, September 2011

Nanoscale phase separation of antiferromagnetic order and superconductivity in K0.75Fe1.75Se2
journal, January 2012

Iron-Based Layered Superconductor La[O _1- _x F _x ]FeAs ( x = 0.05−0.12) with T _c = 26 K
journal, March 2008

A Novel Large Moment Antiferromagnetic Order in K _0.8 Fe _1.6 Se ₂ Superconductor
journal, August 2011

${KFe}_{2} {Se}_{2}$ is the Parent Compound of K-Doped Iron Selenide Superconductors
journal, July 2012

Superconductivity and magnetic properties of single crystals of $K_{0.75}$ Fe $_{1.66}$ Se $_{2}$ and Cs $_{0.81}$ Fe $_{1.61}$ Se $_{2}$
journal, June 2011

Observation of superconductivity at 30∼46K in AxFe2Se2(A = Li, Na, Ba, Sr, Ca, Yb and Eu)
journal, May 2012

Giant increase in critical current density of K $_{x}$ Fe $_{2 - y}$ Se $_{2}$ single crystals
journal, December 2011

Structure of vacancy-ordered single-crystalline superconducting potassium iron selenide
journal, April 2011

Superconductivity in the iron selenide $K_{x} {Fe}_{2} {Se}_{2}$ $(0 \leq x \leq 1.0)$
journal, November 2010

Intrinsic phase separation in superconducting K _0.8 Fe _1.6 Se ₂ ( T _c = 31.8 K) single crystals
journal, July 2011

Anisotropic magnetism, resistivity, London penetration depth and magneto-optical imaging of superconducting K _0.80 Fe _1.76 Se ₂ single crystals
journal, March 2011

Microstructure and ordering of iron vacancies in the superconductor system $K_{y}$ Fe $_{x}$ Se $_{2}$ as seen via transmission electron microscopy
journal, April 2011

Metastable superconducting state in quenched K _x Fe _{2− y} Se ₂
journal, July 2012

Phase separation in superconducting and antiferromagnetic ${Rb}_{0.8} {Fe}_{1.6} {Se}_{2}$ probed by Mössbauer spectroscopy
journal, November 2011

NMR Study in the Iron-Selenide ${Rb}_{0.74} {Fe}_{1.6} {Se}_{2}$ : Determination of the Superconducting Phase as Iron Vacancy-Free ${Rb}_{0.3} {Fe}_{2} {Se}_{2}$
journal, June 2012

Synthesis and crystal growth of Cs _0.8 (FeSe _0.98 ) ₂ : a new iron-based superconductor with T _c = 27 K
journal, January 2011

Nanoscale phase separation in the iron chalcogenide superconductor K $_{0.8}$ Fe $_{1.6}$ Se $_{2}$ as seen via scanning nanofocused x-ray diffraction
journal, August 2011

One-step synthesis of K _x Fe _2−y Se ₂ single crystal for high critical current density
journal, April 2012

Nanoscale Layering of Antiferromagnetic and Superconducting Phases in ${Rb}_{2} {Fe}_{4} {Se}_{5}$ Single Crystals
journal, July 2012

Superconductivity at 32 K in single-crystalline Rb $_{x}$ Fe $_{2 - y}$ Se $_{2}$
journal, February 2011

Anisotropic critical currents in Ba ₂ YCu ₃ O ₇ analyzed using an extended Bean model
journal, July 1989

K _x Fe _{2− y} Se ₂ single crystals: floating-zone growth, transport and structural properties
journal, May 2012

Phase separation and magnetic order in K-doped iron selenide superconductor
journal, November 2011

Superconductivity at 43 K in an iron-based layered compound LaO1-xFxFeAs
journal, April 2008

Effect of varying iron content on the transport properties of the potassium-intercalated iron selenide $K_{x}$ Fe $_{2 - y}$ Se $_{2}$
journal, April 2011